A cricket ball is a hard, solid ball used to play cricket. In men's cricket the ball must weigh between 5.5 and 5.75 ounces (137.5 and 143.8 g) and measure between 8 13/16 and 9 in (220 and 225 mm) in circumference.
It is extensively used worldwide across all cricketing formats in all International Cricket Council ;ICC approved nations. It does not has very thick seam. The Kookaburra sport ball keeps its shine longer but starts to soften after 35-40 overs and batting becomes a lot easier as it seems to get softer and loses the seam. It is machine-made.
Its balls are used in Test cricket and in the Ranji Trophy in India.They have a more prominent seam than the Kookaburra balls. SG ball is not easy to reverse swing. SG balls are handmade
This is only used in the United Kingdom and Caribbean ,well known as West Indies. It can be terrifying for the batsmen to playwith it if the pitch is having grass due to its hard and prominent seam and leather. It does not offers reverse swing often.it is handmade